Home / 21,868.94-32,819.34-8,725.08

Finding the Fourth Proportional to 21,868.94, 32,819.34 and 8,725.08

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Solution

The fourth proportional to 21,868.94, 32,819.34 and 8,725.08 is: 13,093.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,868.94 : 32,819.34 = 8,725.08 : x
  2. Step 2: Convert to fraction form
    21,868.94/32,819.34 = 8,725.08/x
  3. Step 3: Cross multiply
    21,868.94x = 32,819.34 × 8,725.08
  4. Step 4: Simplify right side
    21,868.94x = 286,351,367.05
  5. Step 5: Solve for x
    x = 286,351,367.05/21,868.94
  6. Step 6: Final answer
    x = 13,093.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.